diff options
| author | Krishna Gudipati <kgudipat@brocade.com> | 2012-09-21 17:26:41 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-10-07 11:21:29 +0100 |
| commit | 7ace27ae28a5fa67fa3d25f31d1111991c81e015 (patch) | |
| tree | 841612f109ef2b32d15613aa8093d683a6261356 /drivers/scsi/bfa/bfa_fcs_rport.c | |
| parent | 6894f013a71b1bcd09f46b8071f0c6b55fc58139 (diff) | |
[SCSI] bfa: Add support for IO throttling at port level
Add capability to limit the number of exchanges on a port to
avoid queue-full conditions from the target side.
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/bfa/bfa_fcs_rport.c')
| -rw-r--r-- | drivers/scsi/bfa/bfa_fcs_rport.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/bfa/bfa_fcs_rport.c b/drivers/scsi/bfa/bfa_fcs_rport.c index e90800d0557..58ac643ba9f 100644 --- a/drivers/scsi/bfa/bfa_fcs_rport.c +++ b/drivers/scsi/bfa/bfa_fcs_rport.c @@ -3026,6 +3026,9 @@ bfa_fcs_rport_get_attr(struct bfa_fcs_rport_s *rport, struct bfa_rport_qos_attr_s qos_attr; struct bfa_fcs_lport_s *port = rport->port; bfa_port_speed_t rport_speed = rport->rpf.rpsc_speed; + struct bfa_port_attr_s port_attr; + + bfa_fcport_get_attr(rport->fcs->bfa, &port_attr); memset(rport_attr, 0, sizeof(struct bfa_rport_attr_s)); memset(&qos_attr, 0, sizeof(struct bfa_rport_qos_attr_s)); @@ -3056,7 +3059,8 @@ bfa_fcs_rport_get_attr(struct bfa_fcs_rport_s *rport, rport_speed = bfa_fcport_get_ratelim_speed(rport->fcs->bfa); - if (rport_speed < bfa_fcs_lport_get_rport_max_speed(port)) + if ((bfa_fcs_lport_get_rport_max_speed(port) != + BFA_PORT_SPEED_UNKNOWN) && (rport_speed < port_attr.speed)) rport_attr->trl_enforced = BFA_TRUE; } } |